Quoted from your linked article:
I explained that saying the word made me extremely uncomfortable, that it was not a word I ever used, some black people still used it (the "n-word") sometimes to refer to each other, but that was importantly different, and that black people I had known were just as uncomfortable using the word around white people as white people were using it around them. (Emphasis added)
Don't you think the highlighted text is gratuitous without an explicit explanation?
(I've reposted my edits to this post in a new post to ensure that everybody sees them.)